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s <br /> I14 February 2000 <br /> AGE-NC Project No 96-0254 <br /> IPage 3 of 10 <br /> water was allowed to enter the casing, and samples were retrieved using a modified PVC tubing <br /> bailer <br />' After sample retrieval,the water sampler was disassembled and cleaned New PVC tubing was used <br /> to collect each sample Water samples were collected into 40-m1 EPA-approved VOA vials <br /> containing 0 5 ml 18% hydrochloric acid for sample preservation and 1-liter bottles lacking the <br /> preservative The samples were placed in a chilled container under ice and transported under chain- <br /> of-custody to MAI for analysis <br /> 2 4 LABORATORY ANALYSIS OF SOIL AND GROUND WATER SAMPLES <br /> Selected soil and ground water samples were analyzed by MAI for the following <br /> • Total petroleum hydrocarbons quantified as gasoline and diesel (TPH-g and TPH-d) in <br /> accordance with EPA Method 8015 Modified, <br /> • • Volatile aromatic compounds,benzene,toluene,ethyl-benzene and total xylenes(BTEX)and <br /> methyl tertiary butyl ether (MTBE) in accordance with EPA Method 8020, <br /> • Fuel oxygenates methyl tertiary butyl ether (M TBE), tertiary butyl alcohol (TBA), di- <br /> isopropyl ether (DIPE), ethyl tertiary butyl ether (ETBE) and tertiary amyl methyl ether <br /> (TAME) in accordance with EPA Method 8260 Modified <br /> 25 DRILLING/SAMPLING AND WELL DESIGN <br /> On 18 and 19 November 1999 two ground water monitoring wells were installed on-site <br />' Drilling and sampling was performed using a truck-mounted CME 75-HT drill ng equipped with <br /> continuous flight 8-inch augers The drill rig and two-man crew were provided by WestHaz Mat <br /> Drilling of Rancho Cordova, California <br />' Soil samples were collected from each boring at five-foot intervals, beginning at five feet below <br /> surface grade (bsg), using a California Modified split spoon sampler loaded with three clean 2-inch <br />' by 6-inch brass sleeves A 140-pound hammer was utilized to advance the sampler 18 inches, the <br /> number of blows required to advance the sampler over 6-inch increments was recorded on the boring <br /> logs All sampling equipment was washed in an Alconox solution and rinsed twice with water prior <br /> to each sampling run <br /> Both ends of the soil sleeve of each sample collected for laboratory analysis were covered with <br /> Advanced GcoEm tronmentai Inc <br />